Adjustable outlet burner head for gas or oil burners



Nov. 13, 1951 s. w. FRANZHEIM ADJUSTABLE OUTLET BURNER HEAD FOR GAS OROIL BURNERS Filed Oct. 1, 1946 Patented Nov. 13, 1951 ADJUSTABLE OUTLETBURNER HEAD FOR GAS OR OIL BURNERS George W. Franzheim, Dunkirk, N. Y.

Application October 1, 1946, Serial No. 7 00,422

3 Claims.

This invention relates to burner heads adapted for gas or oil burningdevices, and particularly to those burner heads which are of theadjustable character.

The primary object of the invention is to provide a device of thischaracter wherein it will be possible to produce, in one burner head,effective combustion of any type of gas used, without the necessity ofaflixing different burner heads to adapt the burner for use in burningdifferent types of gases, such as natural or manufactured gas.

Another important object of the invention is to provide a device whereina necessary regulation or adjustment to produce effective combustion canbe made in a minimum period of time, and without the requirement ofspecial tools, and without the services of specially trained mechanics.

The above objects attain added importance from the fact that utilitycompanies are often required to dispatch specially trained employees-for the purpose of installing diiferent burner heads, or makingnecessary adjustments in those burners already installed, when saidcompanies are required to convert the burner from a burner of the typerequired for burning manufactured gas, to a burner for burning naturalgas, or vice versa.

It is understood that the device, while primarily intended toaccommodate varioustypes of gases as hereinbefore stated, is yetintended also to serve as a device wherein proper combustion of otherfuels, in particular oil, can be effected.

With the foregoing and other objects in view which will appear as thedescription proceeds, the invention consists of certain novel details ofconstruction and combinations of parts, hereinafter more fully describedand pointed out in the claims, it being understood that changes may bemade in the construction and arrangement of parts without departing fromthe spirit of the invention as claimed.

Referring to the drawing:

Fig. l is a top plan view of the invention.

Fig. 2 is a sectional view thereof, taken approximately on line 2--2 ofFig. 1, looking in the direction of the arrows.

Referring to the drawing in detail, the invention embodies a hollow bodyportion 5 constructed in inverted frusto-conical form, the body portionbeing flared outwardly and upwardly from its base 6, and being open bothat the base 6 and at I There is aflixed to the inner surface of the base6 a supporting bar 9, which is upwardly inclined at its center and isformed with an opening intermediate its ends for receiving the adjustingbolt I G which is provided with a nut l5 for securing the deflector I lin its positions of adjustment. The lower ends of the bar 9 are securedto the base 6 by screws or similar securing means.

The device further embodies a deflector ll of bowl formation which ismounted within the body portion 5 for rotary adjustment, the upper edgeof said deflector being flush with the upper edge or extremity l of thebody portion 5. The deflector I l is adapted for rotary adjustment byuse of the adjusting bolt Ill, which is capable of being turned asnecessary to permit free rotary movement of the deflector.

The device further embodies cooperating means between the body portion 5and the deflector ll providing openings or ports l4 through which isemitted the flame caused by combustion of the gases consumed within theburning device. This cooperating means includes spaced lugs on thedeflector H and on the body portion 5, each lug having a straight and aninclined wall.

On the body portion 5 the lugs it! are disposed along the upper innercircumference thereof, and are extended horizontally inwardly toward thedeflector II. On the deflector the lugs it are similarly disposed,except that they extend outwardly toward the body portion 5, the lugs l3operating between the lugs l2.

It is to be noted that the lugs l2 and I3, when viewed in top plan, areof right-triangular shape, with the points of the lugs l3 contacting theannular upper edge of the body portion 5, and the points of the lugs l2contacting the annular upper edge of the deflector ll, said upper edgesbeing concentric and spaced apart. The lugs l2 and I3 are so arranged,in this connection, that one side of each lug, whether it be a lug IE orlug [3, extends substantially radially of said annular upper edges,while the other side surface of each lug is disposed chordally to saidannular edges. The substantially radial side wall of each lug i2 isdisposed opposite the corresponding side wall of an adjacent lug it,while the chordal side wall of each lug I2 is opposite the chordal sidewall of an adjacent lug l3. As a result, when the chordal walls ofadjacent lugs l2 and I3 are positioned in contact, the ports It will beof approximately rectangular shape and will be of minimum number, 16 inthe present instance. When the radial side walls are in contact, theports will still be of minimum number, but will now be formed assubstantially diamond shaped parallelograms. When each lug I2 is spacedapart from the lugs It on either side thereof, the number of ports willbe doubled, with rectangular ports alternating with ports of obliqueparallelogram shape. The comparative sizes of these al ternating portscan be varied, of course, by selected location of lugs l2 relative tolugs is.

The arrangement is one specifically devised to provide a wide variety ofadjustments for shaping of the flame at point of issuance thereofthrough the ports, whether natural gas, manufactured gas, or mixed gasbe used.

As hereinbefore stated, the deflector H is adapted to rotate within thebody portion to adjust the lugs of the body portion 5 and deflector H,with respect to each other. The opposing lugs i2 and is are adapted tobe positioned in prescribed relation to each other and when positioneddirectly against each other, they forma minimum prescribed number ofports It. When they are positioned apart from each other, the number ofports it is doubled, the size of each port being dependent upon thedistance the opposing lugs I2 and 53 are moved apart from each other.

The forming of the minimum number of ports It through positioning ofopposing lugs l2 and I3 one against the other, provides proper openingsfor producing efiective combustion of natural gas. The doubling of thenumber or said ports 14 provides openings which are proper for producingeflfective combustion of mixed or menufactured gas, the size of theopenings most desirable for combustion of the particular type of gasbeing capable of regulation in the manner hereinbefore described.

What is claimed is:

1. A burner head including a body portion and deflector connected forrelative rotary adjust ment, the body portion having spaced inlet andoutlet openings and the deflector being positioned across the outletopening with its peripheral edge spaced from the outlet opening edge todeflne an annular space therebetween, an annular series of lugs on thebody portion, and an annular series of lugs on the deflector, the lugsof both series each being of substantially right-triangularconfiguration when viewed in top plan, each lug having one side walldisposed substantially radially of said annular space and another sidewall disposed chordally of said annular space, the substantially radialside walls of the lugs of the de flectors being disposed to contact thecorresponding side walls of the body portion lugs, and the chordal sidewalls of the deflector lugs being disposed to contact the chordal sidewalls of the body portion lugs, the lugs of both series extending acrossthe space to divide the space into an annular series of outlet ports,the lugs of one series adapted on selected adjustments of the'bodyportion and deflector to engage the lugs of the-other series to reducethe number of ports while in creasing the area of each port remaining,and to increase the number of ports while reducing the area or" eachport, said lugs of both series, peripheral deflector edge, and outletopening edge being all disposed in a horizontal plane common with theplane of the uppermost end of the burner head.

2. A burner head including a body portion and deflector connected forrelative rotary adjustment, the body portion having inlet and outletopenings and the deflector being positioned across the outlet opening,there being an annular open space left between the peripheral edge ofthe deiflector and the edge of the outlet opening, lugs on the bodyportion and deflector respectively, extending across and dividing saidspace into a plurality of outlet ports, the lugs of both series eachbeing of substantially right-triangular configuration when viewed in topplan, each lug having one side wall disposed substantially radially ofsaid annular space and another side wall disposed chordally of saidannular space, the substantially radial side walls of the lugs of thedeflectors being disposed to contact the correspond ing side walls ofthe body portion lugs, and the chordal side walls of the deflector lugsbeing disposed to contact the chordal side walls of the body portionlugs, the body portion lugs alternating with the deflector lugs wherebyon rotary adjustment in one direction, adjacent lugs will engage andreduce the number of ports while increasing the individual areas of theports, and on adjust ment in the other direction, adjacent lugs will bespaced apart to increase the number of ports while reducing theindividual areas of the ports, said peripheral edge of the deflector,edge of the body portion outlet opening, and lugs of the body portionand deflector respectively, being all dis posed in a horizontal planecommon with the plane of the uppermost end of the burner "head.

3. A burner head including a stationary body portion having inlet andoutlet openings, a deflector mounted in the body portion and coveringthe central area of the outlet opening, thus to define an annular spaceat the margin of the outlet opening and surrounding the deflector, meansconnecting the deflector to the body portion for rotary adjustment ofthe deflector relative to the body portion, a series of lugs rigid withthe deflector, and a series of lugs rigid with the body portion, thelugs of both series each being of substantially right-triangularconfiguration when viewed in top plan, each lug having one side walldisposed substantially radially of said annular space and another sidewall disposed chordally of said annular space, the substantially radialside walls of the lugs of the deflectors being disposed to contact thecorresponding side walls of the body portion lugs, and the chordal sidewalls of the deflector lugs being disposed to contact the chordal sidewalls of the body portion lugs, the deflector lugs alternating with thebody portion lugs and the lugs of both series extending across anddividing said space into a plurality of outlet ports, said adjustableconnection between the deflector and body portion adapted to selectivelyposition the lugs to increase the number of outlet ports while reducingtheir individual area, and to reduce the number of ports while increasing their individual area, said annular space and both series of lugsbeing located entirely in .a horizontal plane common with the piane ofthe uppermost end of the burner head.

GEORGE W. FRANZHEIM.

REFERENCES CITED The following references are of record in the flle ofthis patent:

UNITED STATES PATENTS Number Name Date 461,886 Mains Oct. 27, 18911,663,339 Geurink et a1. Mar. 20, 1928 FOREIGN PATENTS Number CountryDate 162,641 Great Britain i921 -289,61? Great Britain May 3, 1928496,819 France Mar. 11, 191 9

